and speaking on behalf of the president of the united states. we'll hear from john kerry around 9:00. a lot of people saying he could be the next secretary of state of the united states. then, of course, vice president joe biden. always interesting, krystal, introducing the president. >> certainly. and luke, speaking of joe biden, he is no bill clinton, but they do have a similar style in a way. they both sort of prefer ad libbing to the teleprompter. john heilman said, in a business full of blow dried atom tons, he, biden, is a vivid, authentic human being. i was wondering, what do you think we can expect from joe biden tonight? >> interestingly enough, the fact joe biden is speaking in the 9:00 p.m. hour is fascinating. usually vice presidents get their own primetime address. the obama campaign saw fit to put him in the 9:00 p.m. what's his best strength for president obama? it's connecting to white, working class voters. you often hear the story from joe biden. just a kid from scranton, p.a., trying to make it in the tough, tough world. that's the message he'll resonate on the president'